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Description of problem:
The nmbd daemon segfaults when it is set up as a wins proxy..
Version 3.0.9 of samba update rpm for FC3..
I just upgraded our servers from RH9 to FC3 and found out that
the other server that is running as a wins proxy will not answer
to the nmblookup after about 20 second..
The problem seems to be that the nmbd gets signal 11..
The same setup works nicely if I just remove the
wins proxy = on line from the setup..
Before upgrade I had 3.0.9 rpm for RH9 on this machine with
exactly same setup and it has been running for months without
problems..
here is the dump from nmbd
INTERNAL ERROR: Signal 11 in pid 17484 (3.0.9-1.fc3)
Please read the appendix Bugs of the Samba HOWTO collection
===============================================================
PANIC: internal error
BACKTRACE: 16 stack frames:
#0 nmbd(smb_panic2+0x8a) [0x1eef3a]
#1 nmbd(smb_panic+0x19) [0x1ef167]
#2 nmbd [0x1da789]
#3 /lib/tls/libc.so.6 [0x49aa48]
#4 /lib/tls/libc.so.6 [0x4d475d]
#5 /lib/tls/libc.so.6(malloc+0x81) [0x4d61e1]
#6 nmbd(Realloc+0x95) [0x1edc1f]
#7 nmbd(convert_string_allocate+0x3d4) [0x1d8023]
#8 nmbd(push_ucs2_allocate+0x52) [0x1d8292]
#9 nmbd(push_ascii_nstring+0x30) [0x1d87e9]
#10 nmbd [0x196676]
#11 nmbd(find_workgroup_on_subnet+0x31) [0x196780]
#12 nmbd(sync_all_dmbs+0x45) [0x180039]
#13 nmbd(main+0x642) [0x17bf4f]
#14 /lib/tls/libc.so.6(__libc_start_main+0xe3) [0x487e33]
#15 nmbd [0x17a5b1]
Version-Release number of selected component (if applicable):
samba-3.0.9-1.fc3
How reproducible:
Always
Steps to Reproduce:
1. setup one samba server as wins server
2. set another server as a wins proxy and point the wins server
address to the server you have set samba wins server
3. start samba on both servers
Actual Results: nmbd gets signall 11 and dies..
Additional info:

The same for me, on current FC3`s samba-3.0.10-1.fc3 .
Similar "panic" report was produced immediately after fc1->fc3 upgrade.
When I clear /var/cache/samba/* files, the "panic" is go away, but
the problem still exist -- see #144865

Fedora Core 3 is now maintained by the Fedora Legacy project for security
updates only. If this problem is a security issue, please reopen and
reassign to the Fedora Legacy product. If it is not a security issue and
hasn't been resolved in the current FC5 updates or in the FC6 test
release, reopen and change the version to match.
Thank you!